Improvement in barbers  chairs



T.' NOONAN. BARBERs'gcHAIR. n N0.176`.67Z. Patented Apri1.25,11876. "l

MMM/5m ILPETERS. PHOTO-LITHOGRAFHER, WASHINGTN. D. C4

UNITED Srnlrns A'P nui:ntzrr Genion,

VAND M. It. GATELY.

' IMPROVEMENT IN BARBERS CHAIRS.

Specification forming part of Letters Patent No. 176,672, dated April25, 1876; application filed June 8, 1875.

To all whom it may concern' Be it known that I, vTIMOTHY NooNAN, ofBoston, in -the county of Suffolk and State of Massachusetts, haveinvented certain Improveinents in Chairs, of which the following is aspecification:

In the accompanying drawings, forming a part of this specification,Figure l represents a sectional view of my invention, showing thechair-back Without its upholstery. Fig. 2 is a front view of the chair,showing the-back i without its upholstery; Fig. 3, a detail viewinafter-described means for adjusting the back of a chair with respectto height and inclination, and holding said back at any desired angle orheight, all of which I will now proceed to describe, and point out in myclaim.

In the drawings, A represents the chairfrarne, the sides` or arms C ofwhich are properly curved on` the top, or otherwise shaped to extendupward at the back. The inside of each arm in its upper portion isprovided with a segmental slot or way, d, preferably formed in a metalplate, D,-which is suitably attached to the chair-frame. Each of theslots d is provided with a series of notches or apertures, a, adapted toreceivethe ends of spring latches or bolts b b', which operate throughholders or guides E, attached to the chair-back F. The guides E areattached one on each side of the front of the chair-back F, and extendbeyond the sides of the back, so as to engage with, and travel in, theslots or grooves d.

-'lhe latches b b are, near theirouter ends,

formed each with a collar or shoulder, against which abuts the outer endof a coiled spring, e, contained within each of the guides E. The innerends of tllese springs e abut against suitable stop-pieces f, projectingat right angles from the front of the chair-back. TheA latches or rods bb extend through the stoppieces j' toward the center of the chair-back,where they are connected to a disk or other suitable turning-plate, G,on oppositesides of the pivot thereof, the disk G being connected with astem, g, which is turned'by a suitable handle, h, projecting from therear of the back F, the turning of the disk G simultaneouslydisconnecting the latches b b from the apertures in the slots or ways dd, the springs e serving to shoot the latches into the apertures a, andhold the back in any position required when the handle is released. Toprevent friction and wear on the chair-back F, the stem g is journaledin a plate, El, on the back of a chair-back, in such manner as to beprevented from having any longitudinal play, and the disk G is securedby the stem g at a little distance from the front of a chair-back, asshown A in Fig. 3, thus allowing the inner disk Gr to be operatedwithout wearing against the back F. 'lhe lower portion of the back F isguided by lugs I I, which may be made in one piece, attached to the faceof the chair-back, beyond which they extend on either side, so as toengage with segmental slots lc, formed in metal platesK, screwed orotherwise attached to the inner sides of the chair-frame below the slotsd; or the plates K may be dispensed with and the lugs I be engaged totravel in a groove made in the woodwork of the chair.

The plates D and K are so located and their slots are so curved as topermit the proper elevation, depression, and inclination of theGhairback.

It will be readily seen that by turning.A the handle It the latches orbolts b b are simultaneously freed (rom the apertures a, thus allowingthe back F to be raised or lowered and inclined backward more or less,While the release of the handle allows the bolts or rods to be forcedinto the apertures by the action of the springs e, thus confining theback in the desired position. 'The guides E and lugs l, travelingrespectively in the curved grooves or slots, serve to guide the backduring its adjustment, and to hold it in proper position.

The devices are simple and inexpensive,

and the operation of adjusting the back is guides E, latchesbb, and lugsI, substantially readily and conveniently performed, with less asdescribed.

trouble and inconvenience than by the ordi- In testimony whereof I havesigned my nary methods, the height and inclination bename to thisspeciticntion in the presence of ing varied'simultaneously. `twosubscribing witnesses.

I claim as my invention- TIMOTHY NOONAN. The combination of thechair-frame A,.hav Witnesses: ing the segmental slots d d and 1c k, theformer SAML M. BARTON, having orifices a, with the back F, having the C.F. BROWN. v 1

